edittext hint color

1<android.support.design.widget.TextInputLayout
2                android:layout_width="match_parent"
3                android:layout_height="wrap_content"
4                android:layout_marginTop="@dimen/dp_10"
5                android:textColorHint="@color/color_black" -this line-
6                app:hintTextAppearance="@style/TextLabel">
7
8                <EditText
9                    android:id="@+id/et_state"
10                    style="@style/profile_editTextStyle"
11
12                    android:layout_width="match_parent"
13                    android:layout_height="wrap_content"
14                    android:hint="@string/billingState"
15                    android:text="@string/billingState"
16                     />
17            </android.support.design.widget.TextInputLayout>